Photomatching in Blender possible?
You are most likely looking for BLAM.

"A camera and projector calibration toolkit for Blender that also does automatic 3D reconstruction of geometry with rectangular faces."

https://github.com/stuffmatic/blam

See this introduction video:
https://vimeo.com/35153437 and other videos and documentation listed there.

It does not match an existing mesh though, it creates it for you...
There's other methods too, perhaps using the camera tracker over a sequence of images.